Abstract: A shelf slide and shelf using a plurality of such slides is shown. The slides are releasably securable to wire supports used to form a display shelf. The slides are made of an extruded material having a lower coefficient of friction than the shelf wires and facilitate the movement of product on the shelf from the rear of the shelf to the front of the shelf under the force of gravity. A universal mounting device for permitting the use of a particularly sized shelf with existing shelf support framework where the existing framework is not sized to support the particularly sized shelf. An air baffle mountable on each shelf is also shown for reducing air flow around the shelves for preventing frost formation on refrigerated products.